Process of treating bone.



Patented February 7, Avon.

STATES PATENT @rricn.

i fir JOSEPH ROSS HUNTER, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNORil'ilAM HINCKLE SM' OF PHILADELPHIA, PENNSYLVANIA.

PROCESS OF THnATlNG BONE.

SFPECIFICATION forming part of Letters Patent No. 781,883, datedFebruary 7, 1905.

Application filed December 22, 1904. Serial No. 238,003.

larly phosphate of calcium. 1 silly also remove fatty matter andmoisture irom the bone. These latter may be done preliminarily or at thesame time as the removal of mineral matter. I preferably wash 2 t i "noto remove foreign matter and cut it make it more convenient for handlingmake all parts more easily accessible watment herein. I thus place itinvessols containing a solution of acid which will combine with thecalcium to form compounds :Uill hle in '-.vatcr. The percentage of acidused ahiy -atively small, being about cc u, but varies slightlyaccordthe acid, the character of the bone, ct fresh or dead, and thetemperature at which the process is to be carried out.

' e extent of action of acid upon the mineral relintivcly to the actionupon the fiber hr "hich 1 wish to retain depends 1e temperature. Themost suitable rturc in the case of hydrochloric acid it: vicinity ofblood-heat. The fiber rcfrom the acid treatment, ordinarily ein, is thenWashed thoroughly removed by churning or worle r or in a solution ofSal-soda.

- cin is preferably kept wet -.k\?S.J complete, but may he nd to removemineral matter therei i l moistened if it dry too much. From thesodawashing or from the bleaching process the bone isput into aheating-engine and thoroughly beaten. This breaks the fiber up somewhat;but 1 preferably complete the di vision in a refining or Jordan engineto the fineness required for the desired purpose.

It will be evident that various changes may he made by those skilled inthe art which will come within the scope of my invention, and I do not,therefore, desire to be limited in every instance to the exact processherein hown and described.

Having thus'dcscrihed my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. The process of producing shreds from bone, lacking mineral matterthereof, which consists in treating the bone with acid to remove mineralmatter and in fracturing the residuum while wet.

2. The process of producing delimcd shreds from bone which consists inwashing hone, in cutting it up into convenient sizes, in treating itwith acid at approximately blood-heat, reducing its acidity and finelydividing the product.

3. In the method of producing osscin, the

treatment of the bone with acid approximately at blood-hcat.

l. The process of producing dc-limcd shreds from bone, which consists intreating bone with acid at approximately blood-heat, eliminating theacidity thereof and finely dividing the product.

JOSEPH ROSS llUNlllCR.

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